Rhyolititcen rocks.
Igneous rocks are formed by the solidification of molten materials.
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
No, igneous rocks are harder than sedimentary rocks on average.
extrusive igneous rocks =/
Graphite can be found in all types of rock (igneous, metamorphic, and sedimentary). Although, it originates from igneous rocks, and is generally most economic in metamorphic rocks.
igneous rocks
Rhyolititcen rocks.
Igneous rocks are formed by the solidification of molten materials.
Sedimentary rock can be made up partially of igneous clasts, but igneous rock is igneous rock.
Igneous rocks
Yes. Volcanic rocks are extrusive igneous rocks.
No, igneous rocks are harder than sedimentary rocks on average.
extrusive igneous rocks =/
David A. Phoenix has written: 'Quicksilver deposits in the southern Pilot Mountains, Mineral County, Nevada' -- subject(s): Cinnabar, Economic Geology, Geology, Geology, Economic, Igneous Rocks, Mercury mines and mining, Mercury ores, Mines and mineral resources, Ore deposits, Rocks, Igneous, Rocks, Sedimentary, Sedimentary Rocks
Some do. These are called extrusive igneous rocks. However a large portion of igneous rocks form beneath the surface. These are intrusive igneous rocks.
Yes. More exactly, intrusive igneous rocks.